【摘要】 汽轮机的背压值不仅对汽轮机的运行安全性、经济性产生很大的影响，而且还影响到汽轮机的调节性能，同时还在很大程度上决定了汽轮机的循环水消耗量及向大气中排放热水（ 汽） 量的大小。以２００ＭＷ 汽轮机为例，对背压变化时上述各量的变化情况进行了计算分析，最后给出了在考虑这些因素基础上的综合最佳运行背压的确定方法更多还原

【Abstract】 Back pressure not only affects the safety and economical property but also affects the control performance of steam turbine. also back pressure is a decisive factor for the consume of cooling water and ejection of hot water or steam to the environment. This paper computing and analyzing the affection because of the changing of back pressure firstly, then gives the determining method of the best operating back pressure.更多还原